(19)
(11) EP 2 124 170 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.07.2010 Bulletin 2010/29

(43) Date of publication A2:
25.11.2009 Bulletin 2009/48

(21) Application number: 08019789.0

(22) Date of filing: 13.11.2008
(51) International Patent Classification (IPC): 
G06K 19/04(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 21.05.2008 JP 2008133273

(71) Applicant: Mitomo Corporation
Yokohama-shi Kanagawa (JP)

(72) Inventors:
  • Kaga, Kikuo
    Tokyo (JP)
  • Ashizawa, Shigeo
    Tokyo (JP)
  • Kano, Yasuo
    Tokyo (JP)

(74) Representative: Nunnenkamp, Jörg et al
Andrejewski Honke Patent- und Rechtsanwälte Theaterplatz 3
45127 Essen
45127 Essen (DE)

   


(54) Wireless identification tag


(57) The present invention is aimed at providing a wireless identification tag which can save information with high reliability that is free from the possibility of being lost or falsified, is not broken or melt in the concrete, can expand directionality of an antenna, be distributed in a cement product to be in an appropriate condition for radio communication, and has good adhesion and affinity with cement or the like.
A wireless identification tag 1 mixed in a cement product in the manufacturing procedure thereof in which cement, an aggregate, water, or the like are mixed including a protection body 2 incorporating the wireless identification tag 1 having an antenna portion which can write/read information by radio communication, wherein a concave portion 3 is provided on the surface of the protection body.







Search report